Acoustic Noise Mitigation of Switched Reluctance Machines with Leaf Springs

Yasa Y., Sozer Y., Garip M.

IEEE Transactions on Industrial Electronics, vol.70, no.2, pp.1250-1260, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 70 Issue: 2
  • Publication Date: 2023
  • Doi Number: 10.1109/tie.2022.3159969
  • Journal Name: IEEE Transactions on Industrial Electronics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1250-1260
  • Keywords: Springs, Stators, Vibrations, Reluctance motors, Acoustic noise, Force, Stator windings, Acoustic noise, leaf spring, springs, switched reluctance machine (SRM), vibration
  • Istanbul Technical University Affiliated: Yes


IEEEIn this study, a leaf spring insertion to the stator back iron is proposed to reduce vibration and acoustic noise in a switched reluctance motor (SRM). The back iron of the tooth tip is curved out and the material made of carbon spring steel is placed to dampen the vibration due to radial force. A 6/4 stator/rotor pole SRM is designed and its natural vibration mode frequencies are determined through finite element analyses. The optimal current waveform is applied to the SRM model using the multidisciplinary coupled simulation method to determine the radial force with the harmonic orders. In the final step, the proposed leaf spring architecture is optimized to achieve the most dampening for the effective radial force harmonic orders. The simulation and experimental results confirmed the effectiveness of the leaf spring insertion in reducing the noise and vibration in SRMs.